Quilting Clamp
thingiverse
You can buy a 20 pack of quilting clamps (or quilting clips?) off Amazon for $20. I didn't need 20 for my project--I only needed about 5. So I designed and printed these. In PLA, they've got a decent amount of flex, and seem to work ok. I'm sure they're not as sturdy as the real thing, but I don't do enough quilting to justify the longevity of the real thing.
Download Model from thingiverse
With this file you will be able to print Quilting Clamp with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Quilting Clamp.